/**
   @version 1.21 2002-06-19
   @author Cay Horstmann
*/

import java.awt.Container;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;

import javax.swing.ImageIcon;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;

/**
   A program for viewing images.
*/
public class ImageViewer
{
   public static void main(String[] args)
   {
      JFrame frame = new ImageViewerFrame();
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setVisible(true);
   }
}

/**
   A frame with a label to show an image.
*/
class ImageViewerFrame extends JFrame
{
   public ImageViewerFrame()
   {
      setTitle("ImageViewer");
      setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);

      // use a label to display the images
      label = new JLabel();
      Container contentPane = getContentPane();
      contentPane.add(label);

      // set up the file chooser
      chooser = new JFileChooser();
      chooser.setCurrentDirectory(new File("."));

      // set up the menu bar
      JMenuBar menuBar = new JMenuBar();
      setJMenuBar(menuBar);

      JMenu menu = new JMenu("File");
      menuBar.add(menu);

      JMenuItem openItem = new JMenuItem("Open");
      menu.add(openItem);
      openItem.addActionListener(new 
         ActionListener()
         {
            public void actionPerformed(ActionEvent evt)
            {
               // show file chooser dialog
               int r = chooser.showOpenDialog(null);

               // if file selected, set it as icon of the label
               if(r == JFileChooser.APPROVE_OPTION)
               {
                  String name
                     = chooser.getSelectedFile().getPath();
                  ImageIcon icon = new ImageIcon(name);
                  Image img = icon.getImage();
                  Image newimg = img.getScaledInstance(1000, 700,  java.awt.Image.SCALE_SMOOTH) ; 
                  ImageIcon newIcon = new ImageIcon(newimg);
                  label.setIcon(newIcon);
               }
            }
         });

      JMenuItem exitItem = new JMenuItem("Exit");
      menu.add(exitItem);
      exitItem.addActionListener(new
         ActionListener()
         {
            public void actionPerformed(ActionEvent event)
            {
               System.exit(0);
            }
         });
   }

   private JLabel label;
   private JFileChooser chooser;
   private static final int DEFAULT_WIDTH = 1300;
   private static final int DEFAULT_HEIGHT = 800;
   
}